Senior Software Engineer - C++/Go

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer – C++/Go based in Spain. Join a remote-first engineering team developing next-generation cybersecurity and web infrastructure solutions that protect millions of websites and applications worldwide. In this role, you will work at the systems level, designing and building high-performance networking and web security technologies. You will contribute to both proprietary products and open-source projects, enhancing web server integrations and advancing sophisticated bot detection capabilities. Working across the full software development lifecycle, you will help transform complex technical challenges into scalable, reliable, and efficient solutions. You will collaborate with experienced engineers in an environment that values technical ownership, curiosity, and the freedom to challenge conventional approaches. This is an exciting opportunity for a seasoned systems engineer to make a tangible impact on global internet security while working with a modern technology stack and minimal legacy constraints.